--- Log opened Thu Sep 09 00:00:02 2021
04:41 < sipa> laanwj: do you know of a way in 32-bit ARM to do something like UMLAL but which sets carry flags?
04:42 < sipa> (cc kaushik)
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04:53 < yakshaver> I'd like to implement/test adapter signatures in the core functional test framework. My approach was to adapt this python impl: https://github.com/LeoComandini/adaptor-py
04:55 < yakshaver> It's a good pedagogical impl but does not use x-only pubkeys. I was wondering if anyone knows any impl of adapter sigs I might look at to see what I'm doing wrong. 
04:55 < yakshaver> I'm not an EC expert so it's a bit of a heavy list for me.
04:56 < yakshaver> s/list/lift
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05:03 < elichai2> yakshaver: I think LLFourn has some adapter signatures in rust
05:06 < yakshaver> elichai2: thanks! I'll look through his repo/ask . I should also mention I'm focused on using adaptors with tapscript/schnorr, not ECDSA.
05:06 < elichai2> I see that secp256k1-zkp has adaptor signatures for ecdsa, I guess you want them for schnorr
05:06 < elichai2> yeah, hmm do you need it "production ready" or PoC? (I assume PoC if you're using a pure python one)
05:07 < yakshaver> elichai2: only need PoC, but I'll look at secp256k1-zkp,  I forgot about that branch
06:42 < laanwj> sipa: no, i don't, apparently UMLALS sets only the N and Z flags--but is carry even possible? it's 32 bit * 32 bit + 32 bit so don't think so
06:56 < sipa> laanwj: oh, you're right
06:57 < sipa> 32*32+32 is at most 2**64-2**32
06:57 < sipa> kaushik: ^
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--- Log closed Fri Sep 10 00:00:03 2021